This is a power maintenance panel. Pushing buttons or flipping switches will power down lights throughout the ship for the next twenty-four hours. The following day's fights will take place in the dark.
Targets will not be re-rolled. If a tribute is hit with a 3rd randomized attack, then that will stay.
This is due in part to precedence (the large scale use of randomized fights in the 68th and 75th allowed more than two randomized hits per round), but mainly it's because we don't feel comfortable with targets being re-rolled after the attacks have been revealed. (For example: re-rolling the target of an insta is not something we feel good about.)
However, if a tribute has been hit twice already, they may not be hit with a third un-randomized attack